Gourmet Girls Gluten-Free Bakery - Bistro has served Tucson entirely gluten-free fare since founders Mary Steiger and Susan Fulton opened their doors in 2008. The bistro's kitchen is dedicated to preventing cross-contamination, so guests can enjoy sandwiches, pizza, and pasta alongside ever-changing baked treats without worry. It's a favorite for gluten-sensitive and gluten-tolerant diners alike.